about supply chain management

A lead time is the period of time between the initiation of any process of production and the completion of that process. Thus the lead time associated with ordering a new car from a manufacturer may be anywhere from 2 weeks to 6 months. In industry, lead time reduction is an important part of lean manufacturing
A more conventional definition of Lead Time in the Supply Chain Management realms is the time from the moment the supplier receives an order to the moment it ships it in the absence of finished goods or intermediate (Work In Progress) inventory--it is the time it takes to actually manufacture the order without any inventory other than raw materials or supply parts.
The most important setting in the supply chain.
Supply chain is the process of planning, implementing, and controlling the operations of the supply chain as efficiently as possible. Supply Chain Management spans all movement and storage of raw materials, work-in-process inventory, and finished goods from point-of-origin to point-of-consumption.